I hollowed out a room in a slime chunk verified by two sources, waited 30 minutes in an observation room 26 blocks from the room, and no Slimes. I then decide to go out to a swamp. Full moon, big, flat swamp. No Slimes, all night. What's going on? What should I do?

Perhaps a nest could pick up all the items in a chunk but at a slower speed than a hopper? The birds would not do anything but hover near the item when it " sees " one and it would be flying around randomly just for graphical effects but on the calculations-side, It would be just picking items in the chunk and throwing them into the nest.. That shouldn't be any worse than a hopper and it might even be lighter due to the mentioned-before slower speed.. Hmm.. Maybe..

Edit: I can already imagine many of these nests stuffed on a hopper every chunk in my base, If anything dies, It's property of me and only me.... Me likey

Do they require being overground or can the little fellas live in cave?

Sum Moar Edits: Also.. To avoid the taiga biome being cluttered with thousands of nests, Can the little robins check a 64x64 area for existing nests? And if one is existing and not at full population, It should go there and there should be a rather tiny mob-cap for those robins, As those can put hoppers out of service in many many cases, Such as a hostile mob farm, Why have a big sheet of hoppers when you can just have a robin nest? Same for enderbob farms and also.. The wither cage.. Wood farms for sapling collection? Those would obviously be supreme to hoppers, Those would basically knock hoppers out of service for 90% of farms it seems.. But again, That's only for the collection phase, The part where you take them off the ground, The seem kinda OP but.. I always loved OP things like the iron titan or fully automated cobble farms :), Bottom line, It should be a teeeny tinnny bit hard to start the " Robin Nest Foundry ".

Sum moar even moar edit: The hoppers use 8 planks and 5 iron, Not very cheap to craft a bulk of them without farms running that provide the specific materials, The robin hut just costs sticks and once you get the first 2 eggs, You can make the robin foundry with 1000 robins and it will only cost STICKS.. STICKS, Sticks are some of the cheapest items in game, Even cheaper than cobble.. But it also seems like the best material to build a " Nest "

Evn Evn Evn moar and moar edit: I like it, It is nicely op and i love op stuff, The only sad thing is that those tend to get patched quickly, Like the Ender Ender 2.0 ( Endermite enderman farm ) and the ugly and horrible thing Mojang did with the *Sniff* foundry and the * Sniff * trench.. :,(

Robins will check to see if there is a nest nearby. If there is, it'll live there.

Also, Robins take time to grow and plus, Hoppers are instant. Robins collect 18 items over the course of the day in a max upgraded nest.

I quite quite like this idea, It really does have potential for automation but.. Wouldn't it be a bad lag machine? If hoppers search a chunk for stuff to pick up and cause lag, Wouldn't entities moving by themselves ( Entity calculations ), Searching chunks for items to pickup and possibly 30/40 of them flying around during day.. It might be a very very bad lag machine unless @Mojang has a special way of implementing it..
Partial support, I would really love those but i would hate all the extra server load those might make.. Even worse than the Hopper Minecart as it has mob AI and moves by itself

I thought to reduce lag, they could grind to a halt and items would automatically go to the nest from nearby.

Obviously not, since it's clear from the model that it's a European robin.

I love the idea. It's a nice interesting addition to the world, adds a little color and all. And to people who know me, they know that a quibble is coming.

The behavior described is not much like a robin at all (either North American or European) -- they don't really collect stuff. For one thing, they're pretty small. On the other hand, it's very much typical behavior of crows, ravens, rooks, jackdaws, and others of that ilk. Crows in particular are notorious for flying off with anything shiny they can carry (and they can carry a surprising amount) and stashing it somewhere. Many of these species also roost in colonies, unlike the solitary robins. Plus crows, and even more so ravens, would be at home in a taiga biome; robins would prefer more open areas, the edges of woodlands, etc. (in Minecraft terms, the basic forest biome) In short, the bird you've described is indubitably a crow. Same model, name 'crow', skin mostly black, probably white eyes and yellow beak for visibility, even though in the real birds they're dark, too.

So what to do with that awesome robin skin? Well, why not have robins as a completely passive/decorative mob, similar to the bat. It would be suitable for forest, birch forest, and flower forest biomes. Recolored versions could be used for different biomes: bluebirds would be the same basic design with the brown areas replaced by blue, for instance, and could fly around plains biomes. Etc. This could actually be the basis for a whole assortment of bird types (though no more than one per biome, or it would get a bit silly) -- all but the crows would have a very simple bat-type AI, they just fly around and maybe chirp once in a while.

I know, I know, I'm being hopelessly a bird geek. But that is so precisely a crow, not a robin! The gathering of random stuff, the colonies, the taiga, everything. If I were going to design a crow in Minecraft (and I was this creative, which I'm not) that's how I'd do it.

So, again: I totally support this. I'd support it even more strongly (yep, more than 100%, I'd make someone else play Minecraft just to support it!) if the stuff-collecting birds were crows, and robins were just decorative mobs in other biomes. This is an excellent suggestion (and, by the way, a superb example of how to write a suggestion post).

Well, I must say your knowledge of birds is quite extensive, haha.

I made Robins because we Brits always see them around Winter, so I put them in Taigas to give Taigas something unique. I also chose Robins because I like them they fit perfectly into the Minecraft block aesthetic. Other birds don't fit. So I mixed in the behavior of other birds to this one.

Thanks for the feedback, though! Crows could be my next suggestion if I can find a way to do a Minecraft-esque model.

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Robins are a new mob that spawns in Taiga biomes. They can't exactly be tamed, but you can start your own little colony of them by your house!

Now, isn't that the cutest little thing? These little birds are quite independant, as they will build nests and collect berries from all around.

HP: 4 (2 )

Attack Strength: Does not attack.

Spawn: Taiga, Taiga Hills, Cold Taiga, Cold Taiga Hills

It Is: Passive

When a Robin spawns, it will look around for sticks. There won't actually be any sticks on the ground, but the Robin can get them from leaf blocks. They will then build a nest. Other Robins will flock to this nest. Here, they will just sleep, collect, fly around the biome and just do Robin things.

Specifically, during day, all the adult Robins will fly away and will look for more sticks and berries (i'll come to this later). If you explore a Taiga during the day, you will probably see Robins flying about. The way I imagine it, this will look really cool and will really give something unique to the Taiga biome. During the sunset, the Robins will return to their nest and put their items in the nest. At night, they will sleep.

But it's when the Robins are out during the day and the nest is empty that you can commit your evil deeds. Right click a nest to open it's "inventory". This inventory will mostly be full with sticks and berries, but if you are lucky, there will be a Robin Egg in the nest. Robin Egg's look like normal eggs, except that they are blue. You can steal this egg.

Getting Your Own Robin Colony

You must steal two eggs to begin getting your own little group of Robins. But stealing the eggs isn't all you need to do. You must also make a nest for the babies to live in. The crafting recipe is as follows.

You can place this nest where you want. Then, right click the nest and put the two eggs inside the inventory slots. Wait a day or two, and you'll find baby Robins! How adorable! Unfortunately, these babies don't have their mother for support. You must right click the nest and fill it with berries so that the Robins can eat.

BUT WAIT! What are berries?

Berries are a new food (not one that you can eat without getting poisoned) that only Robins can collect. Right click natural Robin nests with a decent population and you'll likely find berries you can kidnap and feed to the babies you are raising. After another two days, the Robins will grow up.

What Do These Robins Do Beside Look Adorable?

Robins do something quite unique. Any dropped items around their nest will be collected by the Robins and brought back to the nest. If there are no dropped items, the Robins will instead collect berries, sticks and seeds from the area around it's nest. Fear not though, the Robins will always return to their nest at night.

This is the UI. I should note that there is something missing; there is meant to be a population counter which says 1/3 or something along those lines.

So, what can you use this for? Well, suppose you have an automatic farm but you can't get the drops into a hopper for whatever reason. Place a nest nearby and the Robins will put them in their nest. You could set up several nests underground so that if you meet an unexpected end, Robins can secure your drops.

Another note, Robin nests can be placed inside the hopper. It won't exactly be comfortable for them mind, but you automatic-machine building guys won't care about that.

Six Slots isn't exactly much.

Well, I can solve your problems. Simply fill every slot in a nest with sticks, and when the Robins return at night, they will upgrade their base. Here are the stats of each upgrade:

Of course, you might not care about any of this and you just want these adorable birds flying around your garden.

Robin Exclusive Items

There are some items that only the Robin can find. These are Berries, Robin Eggs (they somehow appear when there are two or more Robins a nest) and Bark.

Berries can be brewed to make Potions of Food Poisoning. They cannot be eaten without giving you food poisoning.

Robin Eggs can be thrown, but they will never hatch unless they are in a Robins nest.

Bark can be crafted into two sticks. It is useless otherwise.

Phew. That's a lot of writing for such a small bird. I've always loved Robins and felt they fitted perfectly into Minecraft's cube aesthetics, but I felt like I had to give them bird traits like collecting things.

So. Do you like it? Please comment feedback! I intend to suggest all these ideas straight up to Mojang one day, and I want your feedback on them! Thanks for reading!

Locked, as this has been suggested before. trollsack's post contains a link.

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Ocelot's are the only mob to sprint, when tamed they turn one of three colours... cat colour genes are carried through breeding like sheep wool colour genes. If you have 2 colours, it's a 50/50 chance. If you have 1 colour, it's gaurenteed the baby will be that colour.